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Zdiri K, Cayla A, Elamri A, Erard A, Salaun F. Alginate-Based Bio-Composites and Their Potential Applications. J Funct Biomater 2022; 13:jfb13030117. [PMID: 35997455 PMCID: PMC9397003 DOI: 10.3390/jfb13030117] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/17/2022] Open
Abstract
Over the last two decades, bio-polymer fibers have attracted attention for their uses in gene therapy, tissue engineering, wound-healing, and controlled drug delivery. The most commonly used bio-polymers are bio-sourced synthetic polymers such as poly (glycolic acid), poly (lactic acid), poly (e-caprolactone), copolymers of polyglycolide and poly (3-hydroxybutyrate), and natural polymers such as chitosan, soy protein, and alginate. Among all of the bio-polymer fibers, alginate is endowed with its ease of sol–gel transformation, remarkable ion exchange properties, and acid stability. Blending alginate fibers with a wide range of other materials has certainly opened many new opportunities for applications. This paper presents an overview on the modification of alginate fibers with nano-particles, adhesive peptides, and natural or synthetic polymers, in order to enhance their properties. The application of alginate fibers in several areas such as cosmetics, sensors, drug delivery, tissue engineering, and water treatment are investigated. The first section is a brief theoretical background regarding the definition, the source, and the structure of alginate. The second part deals with the physico-chemical, structural, and biological properties of alginate bio-polymers. The third part presents the spinning techniques and the effects of the process and solution parameters on the thermo-mechanical and physico-chemical properties of alginate fibers. Then, the fourth part presents the additives used as fillers in order to improve the properties of alginate fibers. Finally, the last section covers the practical applications of alginate composite fibers.
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Affiliation(s)
- Khmais Zdiri
- Laboratoire de Génie et Matériaux Textiles, École Nationale Supérieure des Arts et Industries Textiles, Université de Lille, 59000 Lille, France
- Laboratoire de Physique et Mécanique Textiles, École Nationale Supérieure d’Ingénieurs Sud-Alsace, Université de Haute Alsace, EA 4365, 68100 Mulhouse, France
- Correspondence:
| | - Aurélie Cayla
- Laboratoire de Génie et Matériaux Textiles, École Nationale Supérieure des Arts et Industries Textiles, Université de Lille, 59000 Lille, France
| | - Adel Elamri
- Unité de Recherche Matériaux et Procédés Textiles, École Nationale d’Ingénieurs de Monastir, Université de Monastir, UR17ES33, Monastir 5019, Tunisia
| | - Annaëlle Erard
- Laboratoire de Génie et Matériaux Textiles, École Nationale Supérieure des Arts et Industries Textiles, Université de Lille, 59000 Lille, France
| | - Fabien Salaun
- Laboratoire de Génie et Matériaux Textiles, École Nationale Supérieure des Arts et Industries Textiles, Université de Lille, 59000 Lille, France
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Carpa R, Remizovschi A, Culda CA, Butiuc-Keul AL. Inherent and Composite Hydrogels as Promising Materials to Limit Antimicrobial Resistance. Gels 2022; 8:70. [PMID: 35200452 PMCID: PMC8870943 DOI: 10.3390/gels8020070] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/22/2021] [Accepted: 01/11/2022] [Indexed: 01/25/2023] Open
Abstract
Antibiotic resistance has increased significantly in the recent years, and has become a global problem for human health and the environment. As a result, several technologies for the controlling of health-care associated infections have been developed over the years. Thus, the most recent findings in hydrogel fabrication, particularly antimicrobial hydrogels, could offer valuable solutions for these biomedical challenges. In this review, we discuss the most promising strategies in the development of antimicrobial hydrogels and the application of hydrogels in the treatment of microbial infections. The latest advances in the development of inherently and composite antimicrobial hydrogels will be discussed, as well as hydrogels as carriers of antimicrobials, with a focus on antibiotics, metal nanoparticles, antimicrobial peptides, and biological extracts. The emergence of CRISR-Cas9 technology for removing the antimicrobial resistance has led the necessity of new and performant carriers for delivery of the CRISPR-Cas9 system. Different delivery systems, such as composite hydrogels and many types of nanoparticles, attracted a great deal of attention and will be also discussed in this review.
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Affiliation(s)
- Rahela Carpa
- Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University, 1 M. Kogalniceanu Street, 400084 Cluj-Napoca, Romania; (R.C.); (A.L.B.-K.)
- Center of Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 5-7 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Alexei Remizovschi
- Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University, 1 M. Kogalniceanu Street, 400084 Cluj-Napoca, Romania; (R.C.); (A.L.B.-K.)
- Center of Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 5-7 Clinicilor Street, 400006 Cluj-Napoca, Romania
| | - Carla Andreea Culda
- Parasitology and Parasitic Diseases Department, University of Agricultural Sciences and Veterinary Medicine, 3-5 Calea Manastur Street, 400372 Cluj-Napoca, Romania;
| | - Anca Livia Butiuc-Keul
- Molecular Biology and Biotechnology Department, Faculty of Biology and Geology, Babeş-Bolyai University, 1 M. Kogalniceanu Street, 400084 Cluj-Napoca, Romania; (R.C.); (A.L.B.-K.)
- Center of Systems Biology, Biodiversity and Bioresources, Babeş-Bolyai University, 5-7 Clinicilor Street, 400006 Cluj-Napoca, Romania
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Szymańska E, Krzyżowska M, Cal K, Mikolaszek B, Tomaszewski J, Wołczyński S, Winnicka K. Potential of mucoadhesive chitosan glutamate microparticles as microbicide carriers - antiherpes activity and penetration behavior across the human vaginal epithelium. Drug Deliv 2021; 28:2278-2288. [PMID: 34668816 PMCID: PMC8530489 DOI: 10.1080/10717544.2021.1992037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/28/2021] [Accepted: 10/04/2021] [Indexed: 12/30/2022] Open
Abstract
Chitosan glutamate (gCS) spray-dried microparticles appear promising carriers to overcome challenges associated with vaginal microbicide delivery. This study aimed at elucidating the penetration and mucoadhesive behavior of developed gCS multiunit carriers with zidovudine (ZVD) as a model antiretroviral agent in contact with excised human vaginal epithelium followed with an examination of in vitro antiherpes activity in immortal human keratinocytes HaCaT and human vaginal epithelial cells VK2-E6/E7. Both ZVD dispersion and placebo microparticles served as controls. Microparticles displayed feasible (comparable to commercial vaginal product) mucoadhesive and mucoretention characteristics to isolated human vaginal tissue. Ex vivo penetration studies revealed that gCS increased the accumulation of active agent in the vaginal epithelium but surprisingly did not facilitate its penetration across human tissue. Finally, the obtained antiviral results demonstrated the potential of gCS as an antiherpes adjunctive, whose mode of action was related to blocking viral attachment.
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Affiliation(s)
- Emilia Szymańska
- Department of Pharmaceutical Technology, Medical University of Białystok, Bialystok, Poland
| | - Małgorzata Krzyżowska
- Department of Rheumatology and Inflammation Research, University of Gothenburg, Gothenburg, Sweden
- Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | - Krzysztof Cal
- Department of Pharmaceutical Technology, Medical University of Gdańsk, Gdańsk, Poland
| | - Barbara Mikolaszek
- Department of Pharmaceutical Technology, Medical University of Gdańsk, Gdańsk, Poland
| | - Jakub Tomaszewski
- Private Obstetric and Gynecological Clinic, Tomaszewski Medical Centre, Białystok, Poland
| | - Sławomir Wołczyński
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, Bialystok, Poland
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Białystok, Bialystok, Poland
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Artunduaga Bonilla JJ, Honorato L, Cordeiro de Oliveira DF, Araújo Gonçalves R, Guimarães A, Miranda K, Nimrichter L. Silver chitosan nanocomposites as a potential treatment for superficial candidiasis. Med Mycol 2021; 59:993-1005. [PMID: 34036352 DOI: 10.1093/mmy/myab028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/14/2021] [Accepted: 04/29/2021] [Indexed: 11/14/2022] Open
Abstract
Silver compounds are widely known for their antimicrobial activity, but can exert toxic effects to the host. Among the strategies to reduce its toxicity, incorporation into biopolymers has shown promising results. We investigated the green syntheses of silver nanoparticles (AgNPs) and their functionalization in a chitosan matrix (AgNPs@Chi) as a potential treatment against Candida spp. Inhibitory concentrations ranging between 0.06 and 1 μg/ml were observed against distinct Candida species. Nanocomposite-treated cells displayed cytoplasmic degeneration and a cell membrane and wall disruption. Silver nanocomposites in combination with fluconazole and amphotericin B showed an additive effect when analyzed by the Bliss method. The low cytotoxicity displayed in mammalian cells and in the Galleria mellonella larvae suggested their potential use in vivo. When tested as a topical treatment against murine cutaneous candidiasis, silver nanocomposites reduced the skin fungal burden in a dose-response behavior and favored tissue repair. In addition, the anti-biofilm effect of AgNPs@Chi in human nail model was demonstrated, suggesting that the polymeric formulation of AgNPs does not affect antifungal activity even against sessile cells. Our results suggest that AgNPs@Chi seems to be a less toxic and effective topical treatment for superficial candidiasis. LAY SUMMARY This study demonstrated the efficacy of silver nanoparticles (AgNPs) in inhibiting the growth of Candida. AgNPs incorporated in chitosan displayed a reduced toxicity. Tests in infected mice showed the effectiveness of the treatment. AgNPs-chitosan could be an alternative to combat candidiasis.
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Affiliation(s)
- Jhon Jhamilton Artunduaga Bonilla
- Laboratório de Glicobiología de Eucariotos (LaGE), Depto. Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, 21941-590, Rio de Janeiro, Brazil
| | - Leandro Honorato
- Laboratório de Glicobiología de Eucariotos (LaGE), Depto. Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, 21941-590, Rio de Janeiro, Brazil
| | | | - Rodrigo Araújo Gonçalves
- Depto de Química, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900, Rio de Janeiro, Brazil
| | - Allan Guimarães
- Laboratório de Bioquímica e Imunologia das Micoses, Depto de Microbiologia e Parasitologia, Universidade Federal Fluminense, Niterói, 24220-900, Brazil
| | - Kildare Miranda
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho and Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-590, Brazil
| | - Leonardo Nimrichter
- Laboratório de Glicobiología de Eucariotos (LaGE), Depto. Microbiologia Geral, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro, 21941-590, Rio de Janeiro, Brazil
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Gao Y, Chen Y, Cao Y, Mo A, Peng Q. Potentials of nanotechnology in treatment of methicillin-resistant Staphylococcus aureus. Eur J Med Chem 2020; 213:113056. [PMID: 33280899 DOI: 10.1016/j.ejmech.2020.113056] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 02/05/2023]
Abstract
Abuse of antibiotics has led to the emergence of drug-resistant pathogens. Methicillin-resistant Staphylococcus aureus (MRSA) was reported just two years after the clinical use of methicillin, which can cause severe infections with high morbidity and mortality in both community and hospital. The treatment of MRSA infection is greatly challenging since it has developed the resistance to almost all types of antibiotics. As such, it is of great significance and importance to develop novel therapeutic approaches. The fast development of nanotechnology provides a promising solution to this dilemma. Functional nanomaterials and nanoparticles can act either as drug carriers or as antibacterial agents for antibacterial therapy. Herein, we aim to provide a comprehensive understanding of the drug resistance mechanisms of MRSA and discuss the potential applications of some functionalized nanomaterials in anti-MRSA therapy. Also, the concerns and possible solutions for the nanomaterials-based anti-MRSA therapy are discussed.
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Affiliation(s)
- Yujie Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yuan Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China; Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yubin Cao
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Anchun Mo
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Qiang Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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Rezaei N, Hamidabadi HG, Khosravimelal S, Zahiri M, Ahovan ZA, Bojnordi MN, Eftekhari BS, Hashemi A, Ganji F, Darabi S, Gholipourmalekabadi M. Antimicrobial peptides-loaded smart chitosan hydrogel: Release behavior and antibacterial potential against antibiotic resistant clinical isolates. Int J Biol Macromol 2020; 164:855-862. [DOI: 10.1016/j.ijbiomac.2020.07.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/19/2022]
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Potaś J, Szymańska E, Winnicka K. Challenges in developing of chitosan – Based polyelectrolyte complexes as a platform for mucosal and skin drug delivery. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110020] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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The Correlation between Physical Crosslinking and Water-Soluble Drug Release from Chitosan-Based Microparticles. Pharmaceutics 2020; 12:pharmaceutics12050455. [PMID: 32429349 PMCID: PMC7284795 DOI: 10.3390/pharmaceutics12050455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/07/2020] [Accepted: 05/14/2020] [Indexed: 11/23/2022] Open
Abstract
Microparticles containing water-soluble zidovudine were prepared by spray-drying using chitosan glutamate and beta-glycerophosphate as an ion crosslinker (CF). The Box–Behnken design was applied to optimize the microparticles in terms of their drug loading and release behavior. Physicochemical studies were undertaken to support the results from dissolution tests and to evaluate the impact of the crosslinking ratio on the microparticles’ characteristics. The zidovudine dissolution behavior had a complex nature which comprised two phases: an initial burst effect followed with a prolonged release stage. The initial drug release, which can be modulated by the crosslinking degree, was primarily governed by the dissolution of the drug crystals located on the microparticles’ surfaces. In turn, the further dissolution stage was related to the drug diffusion from the swollen polymer matrix and was found to correlate with the drug loading. Differential Scanning Calorimetry (DSC) studies revealed the partial incorporation of a non-crystallized drug within the polymer matrix, which correlated with the amount of CF. Although CF influenced the swelling capacity of chitosan glutamate microparticles, surprisingly a higher amount of CF did not impact the time required for 80% of the drug to be released markedly. The formulation with the lowest polymer:CF ratio, 3:1, was selected as optimal, providing satisfactory drug loading and displaying a moderate burst effect within the first 30 min of the study, followed with a prolonged drug release of up to 210 min.
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Comparison of Rheological, Drug Release, and Mucoadhesive Characteristics upon Storage between Hydrogels with Unmodified or Beta-Glycerophosphate-Crosslinked Chitosan. INT J POLYM SCI 2018. [DOI: 10.1155/2018/3592843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The physicochemical characteristics of beta-glycerophosphate-crosslinked chitosan hydrogels were investigated upon long-term storage at ambient, accelerated, and refrigerated conditions and compared to unmodified chitosan formulations. Additionally, the impact of chitosan modification on the ex vivo mucoadhesive performance in contact with porcine vaginal mucosa and on the drug release profile from hydrogels was evaluated. Viscosity and mechanical properties of formulations with unmodified chitosan decreased significantly upon storage regardless of tested conditions as a result of hydrolytic depolymerization. Introduction of ion crosslinker exerted stabilizing effect on physicochemical performance of chitosan hydrogels but only upon storage at refrigerated conditions. Beta-glycerophosphate-modified chitosan formulations preserved organoleptic, rheological behavior, and hydrogel structure up to 3-month storage at 4 ± 2°C. Viscosity variations upon storage influenced markedly mucoadhesive properties and drug release rate from hydrogels.
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Zhang W, Jin X, Li H, Zhang RR, Wu CW. Injectable and body temperature sensitive hydrogels based on chitosan and hyaluronic acid for pH sensitive drug release. Carbohydr Polym 2018; 186:82-90. [PMID: 29456012 DOI: 10.1016/j.carbpol.2018.01.008] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/17/2017] [Accepted: 01/02/2018] [Indexed: 12/13/2022]
Abstract
Hydrogels based on chitosan/hyaluronic acid/β-sodium glycerophosphate demonstrate injectability, body temperature sensitivity, pH sensitive drug release and adhesion to cancer cell. The drug (doxorubicin) loaded hydrogel precursor solutions are injectable and turn to hydrogels when the temperature is increased to body temperature. The acidic condition (pH 4.00) can trigger the release of drug and the cancer cell (Hela) can adhere to the surface of the hydrogels, which will be beneficial for tumor site-specific administration of drug. The mechanical strength, the gelation temperature, and the drug release behavior can be tuned by varying hyaluronic acid content. The mechanisms were characterized using dynamic mechanical analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and fluorescence microscopy. The carboxyl group in hyaluronic acid can form the hydrogen bondings with the protonated amine in chitosan, which promotes the increase of mechanical strength of the hydrogels and depresses the initial burst release of drug from the hydrogel.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
| | - Xin Jin
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
| | - Heng Li
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
| | - Run-Run Zhang
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
| | - Cheng-Wei Wu
- State Key Laboratory of Structure Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China.
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Szekalska M, Sosnowska K, Zakrzeska A, Kasacka I, Lewandowska A, Winnicka K. The Influence of Chitosan Cross-linking on the Properties of Alginate Microparticles with Metformin Hydrochloride-In Vitro and In Vivo Evaluation. Molecules 2017; 22:E182. [PMID: 28117747 PMCID: PMC6155789 DOI: 10.3390/molecules22010182] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/10/2017] [Accepted: 01/18/2017] [Indexed: 11/17/2022] Open
Abstract
Sodium alginate is a polymer with unique ability to gel with different cross-linking agents in result of ionic and electrostatic interactions. Chitosan cross-linked alginate provides improvement of swelling and mucoadhesive properties and might be used to design sustained release dosage forms. Therefore, the aim of this research was to develop and evaluate possibility of preparing chitosan cross-linked alginate microparticles containing metformin hydrochloride by the spray-drying method. In addition, influence of cross-linking agent on the properties of microparticles was evaluated. Formulation of microparticles prepared by the spray drying of 2% alginate solution cross-linked by 0.1% chitosan was characterized by good mucoadhesive properties, high drug loading and prolonged metformin hydrochloride release. It was shown that designed microparticles reduced rat glucose blood level, delayed absorption of metformin hydrochloride and provided stable plasma drug concentration. Additionally, histopathological studies of pancreas, liver and kidneys indicated that all prepared microparticles improved degenerative changes in organs of diabetic rats. Moreover, no toxicity effect and no changes in rats behavior after oral administration of chitosan cross-linked alginate microparticles were noted.
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Affiliation(s)
- Marta Szekalska
- Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Katarzyna Sosnowska
- Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Agnieszka Zakrzeska
- Department of Biopharmacy, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Irena Kasacka
- Department of Histology and Cytophysiology, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Alicja Lewandowska
- Department of Histology and Cytophysiology, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
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Characterization of human adipose tissue-derived stem cells in vitro culture and in vivo differentiation in a temperature-sensitive chitosan/β- glycerophosphate/collagen hybrid hydrogel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:231-240. [DOI: 10.1016/j.msec.2016.08.085] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 07/29/2016] [Accepted: 08/30/2016] [Indexed: 11/17/2022]
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Novel Spray Dried Glycerol 2-Phosphate Cross-Linked Chitosan Microparticulate Vaginal Delivery System-Development, Characterization and Cytotoxicity Studies. Mar Drugs 2016; 14:md14100174. [PMID: 27690062 PMCID: PMC5082322 DOI: 10.3390/md14100174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/13/2016] [Accepted: 09/14/2016] [Indexed: 12/04/2022] Open
Abstract
Chitosan microparticulate delivery systems containing clotrimazole were prepared by a spray drying technique using glycerol 2-phosphate as an ion cross-linker. The impact of a cross-linking ratio on microparticle characteristics was evaluated. Drug-free and drug-loaded unmodified or ion cross-linked chitosan microparticles were examined for the in vitro cytotoxicity in VK2/E6E7 human vaginal epithelial cells. The presence of glycerol 2-phosphate influenced drug loading and encapsulation efficacy in chitosan microparticles. By increasing the cross-linking ratio, the microparticles with lower diameter, moisture content and smoother surface were observed. Mucoadhesive studies displayed that all formulations possessed mucoadhesive properties. The in vitro release profile of clotrimazole was found to alter considerably by changing the glycerol 2-phosphate/chitosan ratio. Results from cytotoxicity studies showed occurrence of apoptotic cells in the presence of chitosan and ion cross-linked chitosan microparticles, followed by a loss of membrane potential suggesting that cell death might go through the mitochondrial apoptotic pathway.
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Thakur V, Kush P, Pandey RS, Jain UK, Chandra R, Madan J. Vincristine sulfate loaded dextran microspheres amalgamated with thermosensitive gel offered sustained release and enhanced cytotoxicity in THP-1, human leukemia cells: In vitro and in vivo study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:113-22. [PMID: 26838831 DOI: 10.1016/j.msec.2015.12.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 12/01/2015] [Accepted: 12/10/2015] [Indexed: 12/22/2022]
Abstract
Vincristine sulfate (VCS) is a drug of choice for the treatment of childhood and adult acute lymphocytic leukemia, Hodgkin's, non-Hodgkin's lymphoma as well as solid tumors including sarcomas. However, poor biopharmaceutical and pharmacokinetic traits of VCS like short serum half-life (12 min), high dosing frequency (1.4 mg/m(2) per week for 4 weeks) and extensive protein binding (75%) limit the clinical potential of VCS in cancer therapy. In present investigation, injectable vincristine sulfate loaded dextran microspheres (VCS-Dextran-MSs) were prepared and amalgamated with chitosan-β-glycerophosphate gel (VCS-Dextran-MSs-Gel) to surmount the biopharmaceutical and pharmacokinetic limitations of VCS that consequently induced synergistic sustained release pattern of the drug. Particle size and zeta-potential of VCS-Dextran-MSs were measured to be 6.8 ± 2.4 μm and -18.3 ± 0.11 mV along with the encapsulation efficiency of about 60.4 ± 4.5%. Furthermore, VCS-Dextran-MSs and VCS-Dextran-MSs-Gel exhibited slow release pattern and 94.7% and 95.8% of the drug was released in 72 h and 720 h, respectively. Results from cell viability assay and pharmacokinetic as well as histopathological analysis in mice indicated that VCS-Dextran-MSs-Gel offers superior therapeutic potential and higher AUClast than VCS-Dextran-MSs and drug solution. In conclusion, VCS-Dextran-MSs-Gel warrants further preclinical tumor growth study to scale up the technology.
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Affiliation(s)
- Vivek Thakur
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Preeti Kush
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Ravi Shankar Pandey
- SLT Institute of Pharmaceutical Sciences, Guru Ghasidas University, Bilaspur, India
| | - Upendra Kumar Jain
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi, India
| | - Jitender Madan
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India.
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15
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The Effect of β-Glycerophosphate Crosslinking on Chitosan Cytotoxicity and Properties of Hydrogels for Vaginal Application. Polymers (Basel) 2015. [DOI: 10.3390/polym7111510] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Szymańska E, Winnicka K. Stability of chitosan-a challenge for pharmaceutical and biomedical applications. Mar Drugs 2015; 13:1819-46. [PMID: 25837983 PMCID: PMC4413189 DOI: 10.3390/md13041819] [Citation(s) in RCA: 411] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 01/22/2023] Open
Abstract
Chitosan-one of the natural multifunctional polymers-due to its unique and versatile biological properties is regarded as a useful compound in medical and pharmaceutical technology. Recently, considerable research effort has been made in order to develop safe and efficient chitosan products. However, the problem of poor stability of chitosan-based systems restricts its practical applicability; thus, it has become a great challenge to establish sufficient shelf-life for chitosan formulations. Improved stability can be assessed by controlling the environmental factors, manipulating processing conditions (e.g., temperature), introducing a proper stabilizing compound, developing chitosan blends with another polymer, or modifying the chitosan structure using chemical or ionic agents. This review covers the influence of internal, environmental, and processing factors on the long-term stability of chitosan products. The aim of this paper is also to highlight the latest developments which enable the physicochemical properties of chitosan-based applications to be preserved upon storage.
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Affiliation(s)
- Emilia Szymańska
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Białystok, Mickiewicza 2c, Białystok 15-222, Poland.
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